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| author | Kirill Tkhai <tkhai@yandex.ru> | 2013-07-26 17:21:12 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 15:42:49 -0700 |
| commit | 81cc233562f1b23db5bae2699f2f69e1f6dc9408 (patch) | |
| tree | f83049feb9fc8b900784575e5462349c90c12df3 /arch | |
| parent | 7df3eb5b0039aeec6e54b961dbebd61cb80a4bb3 (diff) | |
| download | lwn-81cc233562f1b23db5bae2699f2f69e1f6dc9408.tar.gz lwn-81cc233562f1b23db5bae2699f2f69e1f6dc9408.zip | |
sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall
[ Upstream commit ab2abda6377723e0d5fbbfe5f5aa16a5523344d1 ]
(From v1 to v2: changed comment)
On the way linux_sparc_syscall32->linux_syscall_trace32->goto 2f,
register %o5 doesn't clear its second 32-bit.
Fix that.
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/kernel/syscalls.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index 7f5f65d0b3fd..817187d42777 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -147,7 +147,7 @@ linux_syscall_trace32: srl %i4, 0, %o4 srl %i1, 0, %o1 srl %i2, 0, %o2 - ba,pt %xcc, 2f + ba,pt %xcc, 5f srl %i3, 0, %o3 linux_syscall_trace: @@ -177,13 +177,13 @@ linux_sparc_syscall32: srl %i1, 0, %o1 ! IEU0 Group ldx [%g6 + TI_FLAGS], %l0 ! Load - srl %i5, 0, %o5 ! IEU1 + srl %i3, 0, %o3 ! IEU0 srl %i2, 0, %o2 ! IEU0 Group andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 bne,pn %icc, linux_syscall_trace32 ! CTI mov %i0, %l5 ! IEU1 - call %l7 ! CTI Group brk forced - srl %i3, 0, %o3 ! IEU0 +5: call %l7 ! CTI Group brk forced + srl %i5, 0, %o5 ! IEU1 ba,a,pt %xcc, 3f /* Linux native system calls enter here... */ |